/*
 * Copyright (C) 2005-2011 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008-2011 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2010-2011 ProjectSkyfire <http://www.projectskyfire.org/>
 * 
 * Copyright (C) 2011 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "gamePCH.h"
#include "Totem.h"
#include "WorldPacket.h"
#include "Log.h"
#include "Group.h"
#include "Player.h"
#include "ObjectMgr.h"
#include "SpellMgr.h"

Totem::Totem(SummonPropertiesEntry const *properties, Unit *owner) :
		Minion(properties, owner) {
	m_unitTypeMask |= UNIT_MASK_TOTEM;
	m_duration = 0;
	m_type = TOTEM_PASSIVE;
}

void Totem::Update(uint32 time) {
	if (!m_owner->isAlive() || !isAlive()) {
		UnSummon(); // remove self
		return;
	}

	if (m_duration <= time) {
		UnSummon(); // remove self
		return;
	} else
		m_duration -= time;

	Creature::Update(time);
}

void Totem::InitStats(uint32 duration) {
	Minion::InitStats(duration);

	CreatureInfo const *cinfo = GetCreatureInfo();
	if (m_owner->GetTypeId() == TYPEID_PLAYER && cinfo) {
		uint32 display_id = sObjectMgr->ChooseDisplayId(
				m_owner->ToPlayer()->GetTeam(), cinfo);
		CreatureModelInfo const *minfo =
				sObjectMgr->GetCreatureModelRandomGender(display_id);
		if (minfo)
			display_id = minfo->modelid;
		switch (m_owner->ToPlayer()->GetTeam()) {
		case ALLIANCE:
			display_id = cinfo->Modelid1;
			break;
		case HORDE:
			if (cinfo->Modelid3)
				display_id = cinfo->Modelid3;
			else
				display_id = cinfo->Modelid1;

			switch (((Player*) m_owner)->getRace()) {
			case RACE_ORC:
				if (cinfo->Modelid2)
					display_id = cinfo->Modelid2;
				else
					display_id = cinfo->Modelid1;
				break;
			case RACE_TROLL:
				if (cinfo->Modelid4)
					display_id = cinfo->Modelid4;
				else
					display_id = cinfo->Modelid1;
				break;
			default:
				break;
			}
			break;
		default:
			break;
		}
		SetDisplayId(display_id);
	}

	// Get spell casted by totem
	SpellEntry const * totemSpell = sSpellStore.LookupEntry(GetSpell());
	if (totemSpell) {
		// If spell have cast time -> so its active totem
		if (GetSpellCastTime(totemSpell))
			m_type = TOTEM_ACTIVE;
	}

	if (GetEntry() == SENTRY_TOTEM_ENTRY)
		SetReactState(REACT_AGGRESSIVE);

	m_duration = duration;

	SetLevel(m_owner->getLevel());
}

void Totem::InitSummon()
{
    if (m_type == TOTEM_PASSIVE)
    {
        switch (GetSpell())
        {
            case 33663: // Earth Elemental Totem
            case 32982: // Fire Elemental Totem
            case 50461: // Anti-Magic Zone
                CastSpell(this, GetSpell(), true);
                break;
            default:
                AddAura(GetSpell(), this);
                break;
        }
    }

    // Some totems can have both instant effect and passive spell
    if (GetSpell(1))
        CastSpell(this, GetSpell(1), true);
}

void Totem::UnSummon() {
	CombatStop();
	RemoveAurasDueToSpell(GetSpell());

	// clear owner's totem slot
	for (int i = SUMMON_SLOT_TOTEM; i < MAX_TOTEM_SLOT; ++i) {
		if (m_owner->m_SummonSlot[i] == GetGUID()) {
			m_owner->m_SummonSlot[i] = 0;
			break;
		}
	}

	m_owner->RemoveAurasDueToSpell(GetSpell());

	//remove aura all party members too
	Group *pGroup = NULL;
	if (m_owner->GetTypeId() == TYPEID_PLAYER) {
		m_owner->ToPlayer()->SendAutoRepeatCancel(this);
		// Not only the player can summon the totem (scripted AI)
		pGroup = m_owner->ToPlayer()->GetGroup();
		if (pGroup) {
			for (GroupReference *itr = pGroup->GetFirstMember(); itr != NULL;
					itr = itr->next()) {
				Player* Target = itr->getSource();
				if (Target && pGroup->SameSubGroup((Player*) m_owner, Target))
					Target->RemoveAurasDueToSpell(GetSpell());
			}
		}
	}

	AddObjectToRemoveList();
}

bool Totem::IsImmunedToSpellEffect(SpellEntry const* spellInfo,
		uint32 index) const {
	// TODO: possibly all negative auras immune?
	if (GetEntry() == 5925)
		return false;
	switch (spellInfo->EffectApplyAuraName[index]) {
	case SPELL_AURA_PERIODIC_DAMAGE:
	case SPELL_AURA_PERIODIC_LEECH:
	case SPELL_AURA_MOD_FEAR:
	case SPELL_AURA_TRANSFORM:
		return true;
	default:
		break;
	}
	return Creature::IsImmunedToSpellEffect(spellInfo, index);
}
